Nut-lock.



A. O. GARDINEH.

NUT LOCK.

APPLICATION FILED FEB.14, I913.

L16%A%. Patented 1060.14, 1915.

wvamto'a turn ens raarnri @Fffllit ANWYL O. GARDINER, OF OAKLAND,CALIFORNIA, ASSIGNOR OF QNE-I-IALF 'lO DIEDRICH KNABBE AND ONE-HALF TO"D. KNAIBBE, BOTH 0F OAKLAND CALIFORNIA.

NUT-LOCK.

Lilt'ish ll slh Specification of Letters Patent.

Patented Dee. list, rain.

To all whom it may concern."

Be it known that I, ANWYL O. GARDINER, a citizen of .the United States,residing at Oakland, in the county of Alameda and State of California,have invented new and useful Improvements in Nut-Locks, of which thefollowing is a specification.

The invention relates to nut locks, and has for its primary object toprovide a nut lock wherein a nut can be readily and easily adusted upona bolt and locked against loosen ing thereon, thus avoiding thepossibility of the accidental loosening of the nut or the working of thesame from the bolt.

Another object of the invention is the provision of a nut lock which isextremely simple in construction, thoroughly reliable and efficient inits operation, and inexpensive to manufacture.

With these and other objects in view, the invention consists in theconstruction, combination and arrangement of parts as will behereinafter more fully described, illus trated in the accompanyingdrawing, and pointed out in the claim hereunto appended.

In the drawings: Figure 1 is a side elevation of a bolt showing the nutlock constructed in accordance with the invention and mounted thereon.Fig. 2 is an end elevation thereof. Fig. 3 is a fragmentary verticallongitudinal sectional view thereof. Fig. e is a perspective view of thelocking pin. Fig: is a perspective view of the Washer employed.

Similar reference characters indicate corresponding parts throughout theseveral views of the drawing.

Referring to the drawing by numerals, 5 designates a bolt having theusual threads (5, and this bolt is formed with a groove 7 which runs thelength. of the threads there on. Adjustably mounted upon the bolt is anut' 8, the same being formed at intervals in the threaded wall of thecentral aperture therein with grooves 9, each of which is adapted to bebrought into alinement with the groove 7 in the bolt 5 so that a lockingpin 10 may be driven into the alining grooves and thereby securely holdthe nut against turning on the bolt, the pin being bolt.

outwardly'tapered so that it may be wedged in the alining grooves, andits outer surface is provided with serrations 11 which coact with thethreads on the bolt to prevent the Working of the pin 10 from thegroove, thereby assuring the secure fastening of the nut in its adjustedposition on the bolt.

Engaged on the bolt 5 is a washer 12 which abuts against the inner sideof the nut 8 and is formed with a lug 13 which engages in the groove 7in the bolt so as to prevent the said washer lQ from turning on the boltbut is permitted to be moved longitudinally thereon. The Washer 12 atits outer periphery is designed to be out-turned by the bending thereofto form a tongue or ear 14 which is adapted to engage against one wrenchengaging face of the nut 8 after the latter has been adjusted so as toassist in locking the nut in fixed position on the It is of course toheunderstood that the nut is first properly adjusted and thereafter thewasher bent to form the tongue or ear 14: for engagement with the nut tohold the same. When it is desired to remove the nut or further adjustthe same the tongue or ear 1% is bent into the plane of the body of thewasher. thereby permitting the nut to be readily turned.

In the operation of the nut lock the nut is adjusted on the bolt to thedesired distance thereof until one of the slots 9 therein alines withthe slot 7 in the bolt, and thereafter the pin 10 is driven into thealining grooves, thus securely fastening thenut in its adjusted positionupon the bolt.

From the foregoing it is thought that the construction and manner ofoperation of the device will be clearly understood, and there fore amore extended explanation has been omitted.

What is claimed is The combination with a bolt having a groove runninglengthwise thereof, of a nut adjustably mounted on the bolt and having aplurality of grooves in the wall of its threaded central aperture, eachgroove being of a size corresponding to the groove in the bolt andadapted to aline therewith and an outwardly tapered locking member having two parallel sides interrupted to provide a series of roundedprojections conneeted by areuate depressed portions for engigeinent withthe upper wall of the grooves in the nut and the lower Wall of thegroove in the bolt for locking the nut on the bolt, the interruptedsides of said key conforming to any irregularity between the said wallsof the groove in the nut and the lower wall of the groove in the bolt.lu

In testimony whereof I uihx my signature in presence of two witnesses.

ANW YL O. GARDINER. 'Witnesses E. G. RYKER, W. H.

